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| Caleta el Cobre 028 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Caleta el Cobre 028 This is an OFFICIAL meteorite name. Abbreviation: CeC 028 Observed fall: No Year found: 2018 Country: Chile Mass:  104.9 kg | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 133 approved meteorites classified as EL6. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites | ||||||||||||||||||||||||||||||||
| Comments: | Approved 3 Aug 2019 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
Caleta el Cobre 028 (CeC 028) ~24°20’S, ~70°15’W Antofagasta, Chile Find: 2018 Dec Classification: Enstatite chondrite (EL6) History: Found in December 2018 in the Atacama desert. Physical characteristics: Dark-brown stone with remnants of fusion crust. Many fragments found spread along a few meters downslope. The main fragment weighs 46 kg. Petrography: (J. Gattacceca, CEREGE) Highly recrystallized texture with dominant enstatite (55 vol%, typical size 200 µm) and plagioclase (14 vol%, typical size 100 µm). Some enstatite crystals have lobate boundaries. Metal makes up about 30 vol% of the meteorite, sometimes as large cm sized lumps. Sulfides (troilite and Mn,Mg sulfides, up to 200 µm, abundance about 4 vol%) are found associated to metal, or as separate grains. Metal and sulfides are also found as µm-sized grains witin some silicates. No chondrule relict was observed. Geochemistry: Enstatite Fs0.6±0.3Wo1.3±0.1 (n=5). Plagioclase An15.7±0.2Ab80.6±1.7Or3.7±1.8 (n=5). Kamacite (wt%) Fe 91.2±1.3, Ni 5.7±1.1, Co 0.17±0.10, Si 1.62±0.18 (n=3). Mn,Mg sulfides (wt%) Fe 18.5±0.5, S 45.0±0.2, Mn 18.9±2.1, Mg 16.3±0.7, Ca 0.89±0.13, Cr 0.15±0.09 (n=3). Troilite Cr=0.58 wt%, Ti=0.53 wt%. Classification: Enstatite chondrite EL6. Type 6 from the absence of relict chondrule. EL group from the Si content of metal. The meteorite is unusually metal-rich with about 30 vol% metal. This meteorite was found only 6 km from Caleta el Cobre 024 EL6 chondrite. Specimens: Type specimen at CEREGE. Main mass with ArtMet. | ||||||||||||||||||||||||||||||||
| Data from: MB108 Table 0 Line 0: |
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| Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 10 Jun 2023) ARTMET: Meteorites and Art, Poland (private address; updated 23 Feb 2018) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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| Photos: |
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Geography:
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Statistics: This is 1 of 3440 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater) This is 1 of 3469 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||
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| Revision history: |
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